Low water pressure in Knoxville? We find where it is lost

Pressure Regulator Replacement

A pressure reducing valve near the main keeps city pressure from hammering the house's plumbing. When one fails, it usually fails low: the spring or seat wears and pressure drops, sometimes slowly over months. Some fail high instead, and you notice banging pipes or a dripping relief valve on the water heater. We confirm with a gauge before and after the valve, replace it with a new regulator, set it to a sensible pressure, and add a thermal expansion tank at the heater if the regulator closes the system.

Clogged Aerators vs Supply Problems

A single faucet running weak while every other fixture is fine is usually a clogged aerator or a scaled cartridge screen, a two-minute check. A shower head crusted with mineral buildup is the same story. The test is simple: unscrew the aerator and run the faucet. If flow comes back strong, the fixture was the problem. If it is still weak, the restriction is in the supply line or the valve under the sink, and if every fixture behaves the same way, the cause sits upstream of all of them.

Partially Closed Valve

A main shutoff or branch valve left partly closed after a repair is a surprisingly common cause of weak pressure everywhere. Old gate valves are worse: the gate can break loose from its stem and sit partway down inside the valve while the handle turns freely, choking the flow with no visible sign. We check every valve between the meter and the fixtures, open what is closed, and replace failed gate valves with full-port ball valves, which can't fail that way and are easier to close in an emergency.